Update the "make help" output to reflect the additions
of make targets for tags database generation.
Fixes: aafaea3d3b70 ("devtools: add tags and cscope index generation")
Signed-off-by: Gabriel Carrillo <erik.g.carrillo@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
f82fd96ae0